Physics-
General
Easy
Question
A bead can slide on a smooth straight wire and a particle of mass m attached to the bead by a light string of length L. The particle is held in contact with the wire and with the string taut and is then let fall. If the bead has mass 2m then when the string makes an angle q with the wire, the bead will have slipped a distance
The correct answer is:
Related Questions to study
physics-
A particle parallel to x-axis as shown in the figure such that at all instant the y-axis component of it's position vector is constant and is equal to 'b'. The angular velocity of the particle about the origin is
A particle parallel to x-axis as shown in the figure such that at all instant the y-axis component of it's position vector is constant and is equal to 'b'. The angular velocity of the particle about the origin is
physics-General
physics-
A body with mass 2 kg moves in one direction in the presence of a force which is described by the potential energy graph. If the body is released from rest at x = 2m, then its speed when it crosses x = 5 m is
A body with mass 2 kg moves in one direction in the presence of a force which is described by the potential energy graph. If the body is released from rest at x = 2m, then its speed when it crosses x = 5 m is
physics-General
physics-
A block of mass m is projected on a smooth horizontal circular track with velocity v. What is average normal force exerted by the circular walls on the block during its motion from A to B.
A block of mass m is projected on a smooth horizontal circular track with velocity v. What is average normal force exerted by the circular walls on the block during its motion from A to B.
physics-General
physics-
A particle of mass m is going along surface of smooth hemisphere of radius R. At the moment shown its speed is v Choose correct option.
A particle of mass m is going along surface of smooth hemisphere of radius R. At the moment shown its speed is v Choose correct option.
physics-General
physics-
AB is a string whose one end A is fixed at the highest point of a ring placed in vertical plane. C is the centre of the ring. At other end B of the string, is attached a bead of mass m, which can slide along the ring. If the bead is in equilibrium at B & string is taut then the tension in the string is
AB is a string whose one end A is fixed at the highest point of a ring placed in vertical plane. C is the centre of the ring. At other end B of the string, is attached a bead of mass m, which can slide along the ring. If the bead is in equilibrium at B & string is taut then the tension in the string is
physics-General
physics-
Figure shows a boy on a horizontal platform A on a smooth horizontal surface, holding a rope attached to a box B. Boy pulls the rope with a constant force of 50 Nt. The combined mass of platform A and boy is 250 kg and that of box B is 500 kg. The velocity of A relative to the box B 5 s after the boy on A begins to pull the rope, will be:
Figure shows a boy on a horizontal platform A on a smooth horizontal surface, holding a rope attached to a box B. Boy pulls the rope with a constant force of 50 Nt. The combined mass of platform A and boy is 250 kg and that of box B is 500 kg. The velocity of A relative to the box B 5 s after the boy on A begins to pull the rope, will be:
physics-General
physics-
An iron sphere weighing 10 N rests in a V shaped smooth trough whose sides form an angle of 60° as shown in the figure. Then the reaction forces are
i) 
ii) 
iii) 
An iron sphere weighing 10 N rests in a V shaped smooth trough whose sides form an angle of 60° as shown in the figure. Then the reaction forces are
i)
ii)
iii)
physics-General
physics-
A body of mass m released from a height h on a smooth inclined plane that is shown in the figure. The following can be true about the velocity of the block knowing that the wedge is fixed.
A body of mass m released from a height h on a smooth inclined plane that is shown in the figure. The following can be true about the velocity of the block knowing that the wedge is fixed.
physics-General
physics-
System shown in the figure is released from rest when spring is unstretched. Pulley and spring is massless and friction is absent everywhere. The speed of 5 kg block when 2 kg block leaves the contact with ground is (Take force constant of spring k = 40 N/m and 
System shown in the figure is released from rest when spring is unstretched. Pulley and spring is massless and friction is absent everywhere. The speed of 5 kg block when 2 kg block leaves the contact with ground is (Take force constant of spring k = 40 N/m and
physics-General
physics-
A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic friction between the mass and the incline is m. If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic friction between the mass and the incline is m. If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
physics-General
physics-
A block of mass 10 kg is released on a fixed wedge inside a cart which is moved with constant velocity 10 m/s towards right. Take initial velocity of block with respect to cart zero. Then work done by normal reaction on block in two second in ground frame will be: 
A block of mass 10 kg is released on a fixed wedge inside a cart which is moved with constant velocity 10 m/s towards right. Take initial velocity of block with respect to cart zero. Then work done by normal reaction on block in two second in ground frame will be:
physics-General
physics-
A particle is moved from (0, 0) to (a, a) under a force 
from two paths. Path 1 is OP and path 2 is OQP. Let 
and 
be the work done by this force in these two paths. Then
A particle is moved from (0, 0) to (a, a) under a force from two paths. Path 1 is OP and path 2 is OQP. Let and be the work done by this force in these two paths. Then
physics-General
physics-
For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown,
.Which of the following is correct?
For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown,
.Which of the following is correct?
physics-General
physics-
An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
physics-General
physics-
With what minimum acceleration mass M must be moved on frictionless surface so that m remains stick to it as shown. The coefficient of friction between M & m is 
.
With what minimum acceleration mass M must be moved on frictionless surface so that m remains stick to it as shown. The coefficient of friction between M & m is .
physics-General
